Color

#bb0731

#bb0731
hex#bb0731
rgbrgb(187, 7, 49)
hslhsl(346, 93%, 38%)
oklchoklch(0.503 0.199 19.7)
Closest name: Akai Red (#bc012e)Relative luminance 0.1094

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#07bb91

#bb078b · #bb3707

#31bb07 · #0731bb

Split-complementary

Open in tool →

#07bb37 · #078bbb

#8bbb07 · #07bb91 · #3707bb

Contrast

#bb0731 as textRatioAAAA largeAAAFix
Aaon white
6.59:1passpassfail
  • AAA: use #b1062e as the text (7.16:1)
Aaon black
3.19:1failpassfail
  • AA: use #ec093e as the text (4.68:1)
  • AAA: use #f96285 as the text (7.11:1)
  • AA: or shift the background to #d6d6d6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb0731 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#bb0731 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb0731
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #bb0731 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb0731-c49ca1-62cb80-2d221f-f1e9ef?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md